\begin{tabular}{l*{5}{c}} \toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
\midrule
\textbf{Panel A:} Brazil&                      &                      &                      &                      \\
\addlinespace
Robust              &                 0.105&                 0.116&                 0.109&                 0.111\\
                    &         [0.091,0.120]&         [0.104,0.129]&         [0.092,0.127]&         [0.096,0.126]\\
\midrule
\textit{N}          &                 80921&                260371&                 50129&                152803\\
Main bandwidth      &                  2.07&                  6.69&                  1.30&                  3.93\\
Bias bandwidth      &                  6.27&                 11.46&                  6.27&                 11.46\\


\midrule
\textbf{Panel B:} Colombia&                      &                      &                      &                      \\
\addlinespace
Robust              &                 0.195&                 0.197&                 0.191&                 0.187\\
                    &         [0.172,0.217]&         [0.175,0.220]&         [0.166,0.216]&         [0.162,0.212]\\
\midrule
\textit{N}          &                 45812&                 88944&                 31715&                 63086\\
Main bandwidth      &                  4.38&                  9.75&                  2.98&                  6.28\\
Bias bandwidth      &                 10.87&                 17.71&                 10.87&                 17.71\\


\midrule
\textbf{Panel C:} Denmark&                      &                      &                      &                      \\
\addlinespace
Robust              &                 0.351&                 0.305&                 0.344&                 0.273\\
                    &         [0.307,0.395]&         [0.255,0.355]&         [0.298,0.389]&         [0.223,0.324]\\
\midrule
\textit{N}          &                  7947&                  8213&                  7389&                  7624\\
Main bandwidth      &                  7.10&                  8.16&                  5.45&                  6.03\\
Bias bandwidth      &                 21.78&                 18.72&                 21.78&                 18.72\\


\midrule
\textbf{Panel D:} Finland&                      &                      &                      &                      \\
\addlinespace
Robust              &                 0.021&                 0.020&                 0.005&                -0.002\\
                    &        [-0.005,0.048]&        [-0.004,0.045]&        [-0.027,0.038]&        [-0.032,0.029]\\
\midrule
\textit{N}          &                 51357&                100561&                 34401&                 79847\\
Main bandwidth      &                  1.48&                  3.50&                  1.05&                  2.37\\
Bias bandwidth      &                  7.14&                 10.84&                  7.14&                 10.84\\
Bandwidth selector  &                   MSE&                   MSE&                   CER&                   CER\\
Polynomial          &                Linear&             Quadratic&                Linear&             Quadratic\\
\bottomrule \end{tabular}
